Hi Chris,
Thanks for reaching out! That’s a good and timely question indeed.
All the functionality (and more) of WooTickets has been moved to Event Tickets and Event Tickets Plus. So in terms of functionality you are covered.
Moving over to Event Tickets Plus should be fairly easy. When we released the new plugins we also posted some articles to help the move. I suggest you read through them and follow the instructions there.
Retiring our legacy ticketing plugins
Moving to Event Tickets Plus
New User Primer: Event Tickets & Event Tickets Plus
Just to be sure, I also strongly recommend doing a full backup of your site and the database, in case anything goes wrong. And you can also test it first on a dev / staging site first.
Let me know if you have any follow up questions.
Thanks and cheers,
Andras